php - Laravel 4 using UUID as primary key -

I am installing my first Laravel 4 app and the ID field to be varchar (36), specs call and a UIID .

Using a legend, my migration looks like this for a sample table: schema :: create ('user', function ($ table) {$ Table- & gt; string ('id', 36) - & gt; primary; $ table- & gt; string ('first_name', 50); $ table- & gt; string ('last_name', 50); $ Table- & gt; string 'email') - & gt; Unique (); $ Table- & gt; String ('password', 60); $ Table- & gt; Timestamp (); $ Table- & gt; Softdelts ();});

When a user's table is created, the id field is not defined as PK, or exclusive. It is defined as varchar (36) naul.

Why is this happening while running this migration?

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My basic question was about using UUID, but I understand that adding this to your user model, someone else should see this post:

  Protected $ hidden = array ('password'); $ Fillable = array ('id', 'first_name', 'last_name', 'email', 'password' secure);   
 There is my way to add a user (I'm using a function to create a UUID):  
  Route: Post ( 'Signup' function () {$ userdata = array ('id' => gt; yes_uuid (), 'first_name' = & gt; Input :: find ('first_name'), 'last_name' => input :: Get ('last_name'), 'email' = & gt; input :: find ('email'), 'password' = & gt; hash :: create (input :: ('password')); $ User = new user ($ userdata); $ User- & gt; Save (); Return View: create ('login / login') -> with ('userdata', $ userdata);});    
 
 
 this line  
  $ table-> ; String ('id', 36) - & gt; Primary;   
  
  $ table-> String ('id', 36) - & gt; Should be converted to primary ();